<ion-header>
  <ion-toolbar color="dark">
    <ion-buttons slot="start">
      <ion-back-button defaultHref="/?token=ABC#fragment" id="goBackFromPage3"></ion-back-button>
    </ion-buttons>
    <ion-title>Router Page 3</ion-title>
  </ion-toolbar>
</ion-header>

<ion-content class="ion-padding">
  Page 3
</ion-content>